Window apparatus having a signal



April 29, 1969 A. J. WHITE WINDOW APPARATUS HAVING A SIGNAL Filed Feb. 9. 1966 m BY w 3,441,925 WINDOW APPARATUS HAVING A SIGNAL Andrew J. White, South Lee, N.H. (Post Office Newmarket, NH. 03857) Filed Feb. 9, 1966, Ser. No. 526,200 lint. Cl. G08b 13/08 U.S. Cl. 340274 1 Claim ABSTRACT OF THE DISCLOSURE A window pane carries conducting material and a window frame is electrically connected thereto. Connected to the latter is a first relay switch arm connected to a source of electrical current thus completing a first circuit which is normally closed. A separate circuit includes another switch arm that is normally open. If the window pane is broken the first circuit opens and the other switch arm is activated to close the second circuit which activates a signal in the latter to give an alarm.

One object of my invention is to provide window apparatus having a pane which is so equipped, that when broken anywhere a signal or alarm is given.

Another object is to provide a diffusion or deposit on said window pane that forms part of an electrical circuit and which assures an alarm or signal will be given even though a relatively small portion of the pane is broken, as when a bullet pierces it.

A further object is to so position electricity conducting means that when my apparatus includes a sliding window or door an electrical circuit will be maintained regardless of the position of the window, that is, open, closed or partly open.

A still further object is to provide such apparatus that is simple in construction and is economical to manufacture and install.

The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and operative arrangement of parts such as is disclosed by the drawing. The nature of the invention is such as to render it susceptible to various changes and modifications, and therefore, I am not to be limited to the construction disclosed by the drawing, nor to the particular parts described in the specification; but am entitled to all such changes therefrom as fall within the scope of my claim.

In the drawing:

FIG. 1 is a front elevational view of my window apparatus, the supporting frame being shown broken away.

FIG. 2 is a sectional view taken on the line 2-2 of FIG. 1.

FIG. 3 is a sectional view taken on the line 33 of FIG. 1.

FIG. 4 is an enlarged, sectional view taken on the line 44 of FIG. 3.

FIG. 5 is a sectional view taken on the line 55 of FIG. 1.

FIG. 6 is a wiring diagram for my apparatus.

As illustrated my window apparatus 10 has a supporting sash 11 in which a pane 12 is set which is usually transparent or translucent and is shown formed of an outer section or layer 14a, a rear section or layer 14b and an intermediate layer 140.

In my invention as shown, said intermediate layer 14c is sprayed or otherwise carries on the surface a deposit 16 of an electrical conductor such as stannic oxide or any other well-known conductor that is clear. This deposit differentiates from an electric wire in that it is sprayer nited States Patent 0 3,441,925 Patented Apr. 29, 1969 or spread on the pane and diffused although it may take the form of a pattern with spaced portions. If a single sheet forms said pane 12 the deposit may be on either face. An outer support or frame 18 supports said window and it has the usual window sill 20. Said pane 12 may be part of a door or other article instead of the usual sliding window, hence the form of support may vary.

Attached to said pane 12 is a conductor or bus bar 22 at the right side and another conductor or bus bar 24 is at the left side. Insulating members 26 and 26a are outside of and in contact with said bus bars 22 and 24 respectively, and which are provided when metal windows are used.

A conductor wire 28 extends from bus bar 22 to a metal conductor plate 30 and another conductor wire 28a extends from bus bar 24 to a metal conductor plate 30a.

On one side of said window frame 18 is a metal conductor 32 extending vertically and on the opposite side is a similar conductor 32a. They respectively stay in contact with said conductor plates 30 and 30a should the window be slid up or down. Outside of said conuctors 32 and 32a: insulation 34 and 34a respectively is provided for them.

A conductor wire 36 from an electrical source not shown connects with said window frame conductor 32 while another conductor wire 38 connects with said conductor 32a, hence the electrical current continues through said conductor deposit 16 to wire 38. The latter wire 38 connects with a relay switch arm 40 that connects with a return wire 42 to complete the electrical circuit. The latter is maintained unless a pane 12 is broken.

A separate electrical supply line 44 connects with a relay switch arm 46 that is normally in open position. From the latter an electrical line 50 connects with a signal device 52 such as a bell or light and therefrom a line 54 completes the circuit. It said pane 12 is broken said switch arm 46 moves into contact with wire 50.

What I claim is:

1. Window apparatus comprising a pane, a support for said pane, an electricity conducting deposit on said pane, first electricity conducting means connected to said deposit, switch means closing a circuit through said first means when the latter is electrified, an electrically actuated signal normally inoperative, other electricity conducting means normally open connected to said signal, and control means connected to said switch means and adapted, when said first means is open, to actuate said switch means to contact said other means and close an electrical circuit through the latter and said signal, said support embodying a sash holding said pane and a frame outside said sash, the latter being slidably mounted in said frame, said frame having conductor means connected to said first means, and said sash having conductor means in contact with said frame conductor means whereby an electrical circuit is maintained as said sash slidably moves relative to said frame.

References Cited UNITED STATES PATENTS 1,078,550 11/1913 Ogle 340274 2,188,339 1/1940 Dunham 340273 X 2,525,930 10/1950 Mevorach 340273 X 3,012,924 12/1961 Browne 117-2l1 X THOMAS B. HABECKER, Primary Examiner.

D. L. TRAFTON, Assistant Examiner.

U.S. Cl. X.R.

ZOO-61.08, 61.93; 340273 

